Light-intensifier.



G. LINDE.

LIGHT INTENSIFIER.

APPLICATION FILED SEPT.19,1913.

Patented Dec. 9, 1913.

7 "EMA/TOR [ma ge Lana/J2 WITNESSES BY W 4 ATTORNEYS GEORGE LINIDE, 0F NEWARK, NEW JERSEY.

LIGHT-INTENSIFIER.

Specification of Letters Patent.

Patented Dec. 9, 1913.

Application filed September 19, 1913. Serial No. 790,684.

To all whom it may concern:

Be it known that I, Gnonen LINDE, a citizen of the United States, and a resident of Newark, in the county of Essex and State of New Jersey, have invented a. new and Improved Light-Intensifier, of which the following is a full, clear, and exact description.

This invention relates to illumination or lighting apparatus, andhasparticularreference to easily and adjustably controlled means for increasing the light from a gas jet or any other suitable source of light for any purpose such, for instance, as for the use of workmen or artisans on a bench or the like.

Among the objects, therefore, of the in vention is to increase the eflieiency of the lighting effect of the gas jet whereby a single jet may be caused to serve for a considerable number of persons positioned around it whereby such persons will not only receive better light than is usual but since the number of lights in the room will be greatly reduced, the saving in gas will be enormous and also the sanitary conditions of the room will be greatly bettered.

A further object of the invention is to provide a light intensifying lens and means for supporting it upon a gas jet in such a manner that the lens may be adjusted around both vertical and horizontal axes so as to meet the requirements of any particular user without interfering with or disturbing any other similar lens holders which may be located upon the same jet.

The invention also contemplates the construction of the lens holder with respect to simplicity, cheapness and reliability.

The foregoing and other objects of the invention will hereinafter be more fully described and claimed and illustrated in the drawings forming a part of this specifica tion in which like characters of reference indicate corresponding parts in all the views, and in which Figure 1 is an elevation of a conventional form of standard gas jet showing a plurality of light intensifiers supported thereon in various positions; Fig. 2 is a horizontal section on the broken line 2-2 of Fig. 1; Fig. 3 is a sectional detail on the line 3-3 of Fig. 1; Fig. 4: is a sectional detail on the line 4t4= of Fig. 2; and Fig. 5 is a detail showing the hinge joint described below.

The several parts of the device may be made of any suitable materials, and the relative sizes and proportions, as well as the general design of the mechanism, may be varied to a considerable extent without departing from the spirit of the invention hereinafter more fully set forth and specifically claimed.

The numeral 10 indicates a gas fixture comprising a base 11 and a nozzle 12 having a tip 13. While I show a standard fixture or one which is supported upon a base, I wish to have it understood that the invention contemplates the use of any other style of gas jet to which the intensifiers may be secured or upon which they may be supported in the manner herein set forth. Each of the intensifiers in this preferred embodiment of the invention comprises a lens 141 having a plane convex form and adapted for the purpose of intensifying without particularly focusing the light from a" gas flame. Said lens is secured in a metallic frame 15 of annular or cylindrical form connected rigidlv in any suitable manner as by brazing to an arm 16 which extends there from substantially at a right angle from one edge of the lens. Said arm is rigid with respect to the frame 15 and is hinged at its opposite end from the lens at 17 to a bracket 18. The bracket is of peculiar construction and at one end is provided with a flat disklike extension 19 having an eye 20 to receive the gas tip or nozzle 12. The material of the bracket is preferably thin sheet metal and to provide the necessary stiffness for its purpose the edges thereof are all bent-upwardly as shown in the detailed views. The joint 17 between the arm and the bracket is formed preferably by a pair of cars 21 bent upwardly from the lateral edges of the bracket or constituting extensions of the aforesaid strengthening edges, said ears being imperforate but bent outwardly or con cavely in directions opposite each other, forming sockets 17' into which lugs 16 project from the adjacent end of the arm 16, as shown in Fig. 5.

A brace 22 in the form of a serrated are is secured to the bottom of the lens frame 15 adjacent the outer end of the arm 16. The curvature of the brace corresponds to the radius between it and the axis of the joint 17. The lower end of the brace extends through a slot 28 in the lower or outer end of the bracket 18 and is provided with divergent points 24 which, when spread apart, prevents accidental separation or withdrawal of the brace from the bracket. A pawl 25 is pivoted at 26 to swing in substantially the plane of the bracket into and out of engagement with the brace. Aspring 27 serves to normally hold the pawl in looking engagement with any one of the teeth 22. formed on said brace. The weight of the lens serves to hold the engaging teeth in engagement with the bracket and its pawl, but the teeth are so arranged that when the lens is to be elevated the pawl will not interfere with such movement, the pawl simply riding over the teeth until the proper elevation is reached, when the spring will automatically engage the pawl. To lower the lens, however, the operator will apply his finger to the free end 25 of the pawl, forcing it against the tension of the spring 27 and allowing the lens brace to pass downwardly through the slot to the desired position, when the pawl may again automatically engage and hold the brace and lens.

The position of the intensifier with respect to its adjustment around the vertical axis of the gas jet may be determined in any suitable manner. I provide for this purpose, however, a locking cam 28 pivoted at 29 in the rim of the extension 19. The cam and its connection are also substantially flat, making it expedient for a series of intensifiers to be closely nested upon the same port-ion of the gas jet, and the nature of the metal of the bracket and the formation of its strengthening flanges add to the facility for such close nesting. The cam 28 upon being swung around its pivot 29 serves to grip the gas et and thereby lock the bracket from rotation thereon. The cam, however, may be easily loosened for the purpose of making the swinging adjustment of the bracket without disturbing the position of any other bracket or light intensifier.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. In a light intensifier, the combination with a gas jet, of a bracket having an annular extension fitted to said jet and capable of adjustment around the jet, means to lock the bracket to the jet, a lens adapted to transmit the light rays from the gas jet, a frame supporting the lens, an arm rigidly connected to the frame extending at an angle therefrom, means pivotally connecting the opposite end of the arm to the bracket whereby the lens and its frame may be moved vertically around the horizontal axis of said pivotal connection, and a brace ex-' tending between the lens frame and the lower end of the bracket serving to support the lens in any position of vertical adj ustment.

2. In a light intensifier, the combination with a gas jet, of a bracket constructed of thin sheet metal and having its edges bent into stiffening flanges, said bracket including a substantially disk-shaped extension having a hole through which the gas jet extends, a fiat cam pivoted in the rear of said extension and adapted to lock the bracketfrom rotation on the jet, said bracket and cam being so constructed and arranged as to closely nest with other brackets and cams of the same character, and a light transmitting lens adjustably supported for movement in vertical planes upon said bracket.

3. In a light intensifier, the combination of a bracket formed of thin sheet metal and having a pair of ears bent upwardly along its lateral edges forming oppositely arranged sockets, a lens, a frame supporting said lens, an arm secured to the frame and extending therefrom at an angle and having a pair of oppositely extending lugs formed on the end of the arm opposite the frame and said lugs being seated in the aforesaid sockets and constituting a horizontal pivot around which the lens and its frame may swing, and means to control such swinging movement of the lens with respect to the bracket.

4:. In a light intensifier, the combination of a bracket, an arm having one end pivoted to a portion of the bracket, a lens rigidly secured to the other end of the arm, another portion of the bracket being formed with a slot, a brace in the form of a serrated arc secured at one end to the lens frame and having its other end extending through said slot, and a spring pressed locking pawl cooperating automatically with the brace to control the position of the lens with respect to the bracket, the curvature of the brace corresponding to the radius from the pivotal connection of the arm and the bracket.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

GEORGE LINDE.

Witnesses Geo. L. BEELEN, PHILIP D. Roma-mus.

Copies of this patent may be obtained for five cents each/by addressing the Commissioner of Patenti, Washington, D. C. 

